- A & E Machining
- A C Machine Co Inc
- A-Ok Precision Prototype
- Alliance Tool & Machine Co
- Aztec Boring Inc
- Bauer Precision Tool Co
- Boulton Machine Products
- C & P Mfg Inc
- C T Machining
- Crystal Machine Tool
- Durr Production Systems Inc
- Enterprise Automotive Systems
- Gordon & Sons Ind
- Industrial Tapping Co
- Jordan Tool Corp
- L & M Machine & Mfg
- L & M Machining & Manufacture
- Logan Tool Co
- Logan Tool Co
- M & M Machining Inc
- Machine Enterprises
- Precise Tools
- Pro Precision Inc
- Quick Turn Mfg Inc
- R & M Machine Inc
- R & R Mfg
- R P Tool & Mfg
- Rehmann Industries
- Saturn Industries
- True Tapping Co
- Variable Machining & Tool Inc
- Warren Screw'Products